Controller for gas-burners



F. W. WOLF.

CONTR'OLLERFOR GAS BURNERS. APPLICATION FILED SEPT. 10. 1920..

1,385,513. Patented July 26, 1921.

A? as v k? M M W -44. T 1 2.5 i ATTORNEYS.

M INVENTOR:

UNITED STATES PATENT OFFICE. v

FREDERICK W. WOLF, OF CHICAGO, ILLINOIS.

CONTROLLER FOR GAS-BURNERS.

Specification of Letters Patent. Patented J l 26' 1,921

Application filed September 10, 1920. Serial No. 409,352.

To all whom it may concern:

Be it known that I, FREDERICK lV. WVOLF,

' partly shut off when the cooking utensil is removed from the burner,there being associated with the: latter a valve actuating means which iscontrolled by the engagement therewith of the cooking utensil, saidmeans operating to automatically turn on the fuel supply when theutensil 1s placed'on the burner, and to partly shut off the supply whenthe utensil i's removed.

The invention also has for its object to provide an automatic valvemechanism which enables the fuel supply to be com,

pletely shut off manually at will.

The invention consists in a comblnation and arrangement of parts to behereinafter described and claimed, and in order that the same may bebetter understood, reference is had to the accompanying drawing formlnga part of this specification. I In the drawing,

Figure 1 is a side elevation of the appl1 I. Fig. 2 is an inverted planvlewthereof; Fig. 3 is an enlarged vertical section on the line 3+3 ofFig. 2; r j

Fig. 4: is a viewsimilar to the preceding but'showing the parts inanother position, and A a Fig. 5 is an enlarged crosssection on the line.55 of Fig. 1-.

Referring specifically to the drawlng, 10 denotes an annular gas burner,of conventional design having a supportlng 'plpe 11 into whichdischarges-the nozzle 12 of a valve casing 13 connected to thegas-supply manifold 14:.

' The valve'casing 13 ha's'a longitudinal gas passageway 15 which is incommunicatmn at one end with the manifold 14: and-is continued throughthe-nozzle 12. Intersectin'g 2 this passageway transverse1y, is achamber 16, the same being formed in the valve casing, and containing avalve in the form of a rotatable cylindrical plug 17 having a transverseport 18. \Vhen the valve 17 is turned to bring the port 18 in line withthe passageway 15, the gas can flow from the manifold 14 to the nozzle12 to be discharged by the latter-into the pipe 11 of the burner 10. Thegas flow is shutoff by turning the valve 17 to bring its port 18completely out of registry with the passageway 15.

The valve plug 17 is sl-idable lengthwise in the chamber 16 for apurpose to be presently described, and from its ends extend stems 19 and20, respectively. The stem 19 extends to the outside of the casing 13and its outer end is fitted with a handle 21 wherebythe valve plug 17may berotated to turn the gas supply on or off as hereinbefore described. The valve casing 13 is fitted with a stuiling box 22 throughwhich the valve stem 19 passes.

The stem 20 also passes outv of the valve casing 13 through a stuffingbox 23 fitted thereto, and itsiprojecting end passes'loosely through aslot 24 in one end of a lever 25 extending beneath the pipe 11 andhaving at the .center of the burner 10 an upstanding stem 26 passingthrough the latter and having at the top a cap 27 which is normallypositioned a short distance above the planeof the burner top. The pipe11 has a bracket arm or lug 28 to which the lever 25 is pivotedintermediate its ends as shown at 29. To the lever 25 is fastened a leafspring 30 which bears at its free end against the lug 28 and serves tohold the lever in such a position that the cap 27 is normally above theplane of the top of the burner 10.

On opposite sides of the lever 25 the stem 20 is fitted with abutments31 and 32 between whichthe lever end is free to swing. These abutmentsare nuts, and between the abutment 31 and the outer end of thestuffing'box 23 is located a spring 33, the same being coiled around thestem 20.

There is sufiicient space betweenthe inner ends of the stufiing boxes 22and 23 to permit the valve plug 17 to slide therein as hereinbeforedescribed.

The abutments 31 and 32 will be so adjusted relative to the lever 25that when the cap 27 is in its normal elevated position (it being soheld by spring '30) the lever is out of engagement with the abutment.31, and

the spring 33 is holding the valve plug 17,

drawn down such a distance that its port 18 is only partly registeringwith the gas passageway 15, with the result that the gas supply ispartly shut off. If av cooking utensil or other article is'now placed onthe burner 10, it engages the cap 27 and forces the same down, resultingin the rear end of the lever 25 swinging upwardly to engage the abutment31, whereby the valve plug 17 is slid upwardly to bring its port 18 intocomplete registry with the gas passageway 15, so that a full flow of gasto the burner 10 is now had. When the cooking vessel or other articleisremoved from the burner and the cap 27 the lattereis free to rise andthe lever 25 is restored to its normal position by the spring 30. Therear end of the lever now moves away from the abutment 31, whereupon thespring 33 draws the valve plug 17 down to bring its port 18 into theposition where it only partly registers with the passageway 15, andhence the gas is now partly shut o .7 e 7 p The operation hereinbeforedescribed results in a considerable saving of gas as the latter is notturned onvfull except when the burner is actually in use. At all othertimes 7 the gas is partly shut 013:, only enough as being admitted tothe burner as will su cc to keep the same lighted. The extent to whichthe gas is to be partly shut is readily regulated by the abutment 31 andthe stufling boxes or bushings 22 and 23. In full open position thevalve plug 17' bears against the inner end of thebushing 22, and inpartly open position it bears against the inner end of the bushing 23.The abutment 32 limits the movementof the lever 25 in the direction itswings to elevate the capv27.

The gas supply can be, completely shut off by turning th plug 17 in theusual man ner by means of the handle 21 until its port 18 is out ofregistry with the gas passageway 15, and this can be done when the plugis in either the full or the partly registering positions hereinbeforedescribed.

I claim: 7

1. The combination with a burner; of a fuel controlling valve thereforcomprising a associated with the burner and having an operativeconnection with the valve for effecting the aforesaid sliding movementthereof, and means for controlling the extent of such slidin movement ofthe valve.

2. The combination with a burner; of a fuel controlled valve thereforcomprising casing having a fuel passageway and a chamber intersectingthe same, a ported valve in the chamber, said valve being rotatable tobring its port into and out of registry with the fuel passageway, andalso slidable in the chamber to obtain a complete and a part registry ofits port with the fuel passageway, stops in the chamber on opposite endsof the valve for limiting the sliding movement thereof, and anarticle-controlled means associated with the burner and having anoperative connection with the valve for effecting the aforesaid slidingmovement thereof. 7

3. The combination with a burner; of a fuel-controlling valve thereforcomprising a casing having a fuel passageway and a chamber intersectingthe same, a ported valve in the chamber, said valve being rotatable tobring its port into and out of registry with the fuel passageway, andalso slidable in the chamber to obtain a complete and a part registry ofits port with the fuel passageway, a stem extending from the valve Ifuel controlling valve therefor comprising a casing having a fuelpassageway and a chamber intersecting the same, a ported valve in thechamber, said valve being rotatable to bring itsport into and, out ofregistry with the fuel passageway, and also slidable in the chamber toobtain a complete and a part registry of its port with V the fuelpassageway, means for controlling the extent of the slidingmovement ofthe valve, a stem-extending from the valve, an article-controlled leverassociated with the burner, said lever having an aperture through whichthe valve stem loosely passes, an abutment on the valve stem engageableby the lever, and a spring bearing against the abutment for sliding thevalve in one direction.

5. The combination with a burner; of fuel-controlling valve thereforcomprising a casing having a fuel passageway and a chamber intersectingthe same, a ported valve in the chamber, said valve being rotatable tobring its port into and out of registry with the'fuel passageway, andalso slidable in the chamber to obtain a complete and a part registry ofits port with the fuel passageway,astem extending from the valve, anarticle-controlled lever associated with the burner, said lever having.an aperture through which thevalve stem loosely passes, an abutment onthe valve stem engageable by the lever, a spring bearing against theabutment for sliding the valve in one direction,

ends of the valve for limiting the sliding movement thereof.

6. The combination with a burner; of a fuel-controlling valve thereforcomprising a casing having a fuel passageway and a chamber intersectingthe same, a ported valve in the chamber, said valve being rotatable tobring its port into and out of registry with the fuel passageway, andalso slidable in the chamber to obtain a complete or a part registry ofits port With the fuel passageway, means for controlling the extent ofthe sliding movement of the valve, a stem extending from the valve, anarticle-eontrolled lever associated with the burner, said lever havingan aperture through Which the valve stem loosely passes, abutments onthe valve stem on opposite sides of the lever, and a spring bearingagainst one of the abutments for sliding the valve in one direotion.

In testimony whereof I aflix my signature.

FREDERICK W. WOLF.

